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8513413 = 171493361
BaseRepresentation
bin100000011110…
…011110000101
3121000112012121
4200132132011
54134412123
6502245541
7132235306
oct40363605
917015177
108513413
114895287
122a268b1
1319c102c
1411b87ad
15b3275d
hex81e785

8513413 has 8 divisors (see below), whose sum is σ = 9077400. Its totient is φ = 7956480.

The previous prime is 8513389. The next prime is 8513429. The reversal of 8513413 is 3143158.

It can be written as a sum of positive squares in 4 ways, for example, as 1633284 + 6880129 = 1278^2 + 2623^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8513413 - 29 = 8512901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8513513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853 + ... + 4213.

It is an arithmetic number, because the mean of its divisors is an integer number (1134675).

Almost surely, 28513413 is an apocalyptic number.

It is an amenable number.

8513413 is a deficient number, since it is larger than the sum of its proper divisors (563987).

8513413 is a wasteful number, since it uses less digits than its factorization.

8513413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3527.

The product of its digits is 1440, while the sum is 25.

The square root of 8513413 is about 2917.7753511880. The cubic root of 8513413 is about 204.1900462097.

The spelling of 8513413 in words is "eight million, five hundred thirteen thousand, four hundred thirteen".

Divisors: 1 17 149 2533 3361 57137 500789 8513413